oj.uz

Submission #1017285

# Submission time Handle Problem Language Result Execution time Memory
1017285 2024-07-09T07:13:21 Z Thanhs Feast (NOI19_feast) C++14
100 / 100
 120 ms 15188 KB 
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define int long long
// #define double long double
#define pb push_back
 
#define endl '\n'
#define fastIO ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
#define setmin(x,y) x=min((x),(y))
#define setmax(x,y) x=max((x),(y))
#define fi first
#define se second
 
mt19937 hdp(69420);
int rand(int l,int r){return l+((hdp()%(r-l+1))+r-l+1)%(r-l+1);}

const int N = 3e5 + 5;
const int mod = 1e9 + 7;
const int SQ = 450;
const int inf = 1e17;
const int L = 40;

int n,k,a[N];
pair<int,int> dp[N][2];

pair<int,int> solve(int lambda)
{
    for(int i=1;i<=n;i++)
    {
        dp[i][0]=max(dp[i-1][0],dp[i-1][1]);
        dp[i][1]=max(make_pair(dp[i-1][0].fi+a[i]-lambda,dp[i-1][0].se+1),make_pair(dp[i-1][1].fi+a[i],dp[i-1][1].se));
    }
    return max(dp[n][0],dp[n][1]);
}

signed main()
{
    fastIO
    // freopen("in.txt","r",stdin);
    // freopen("out.txt","w",stdout);
    dp[0][1]={-inf,0};
    cin>>n>>k;
    for(int i=1;i<=n;i++) cin>>a[i];
    int l=0,r=inf;
    while(l<r-1)
    {
        int m=l+r>>1;
        auto res=solve(m);
        if(res.se>k) l=m;
        else r=m;
    }
    auto res=solve(r);
    cout<<res.fi+res.se*r;
}

Compilation message

feast.cpp: In function 'int main()':
feast.cpp:49:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   49 |         int m=l+r>>1;
      |               ~^~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 90 ms 14928 KB Output is correct
2 Correct 86 ms 14932 KB Output is correct
3 Correct 86 ms 15064 KB Output is correct
4 Correct 88 ms 14932 KB Output is correct
5 Correct 86 ms 14912 KB Output is correct
6 Correct 87 ms 14812 KB Output is correct
7 Correct 84 ms 14884 KB Output is correct
8 Correct 84 ms 14936 KB Output is correct
9 Correct 83 ms 14676 KB Output is correct
10 Correct 84 ms 14932 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 13144 KB Output is correct
2 Correct 77 ms 13312 KB Output is correct
3 Correct 76 ms 13144 KB Output is correct
4 Correct 77 ms 13144 KB Output is correct
5 Correct 85 ms 14908 KB Output is correct
6 Correct 76 ms 13144 KB Output is correct
7 Correct 78 ms 13148 KB Output is correct
8 Correct 86 ms 14928 KB Output is correct
9 Correct 85 ms 14672 KB Output is correct
10 Correct 78 ms 13140 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 14996 KB Output is correct
2 Correct 92 ms 14928 KB Output is correct
3 Correct 90 ms 15184 KB Output is correct
4 Correct 87 ms 14928 KB Output is correct
5 Correct 94 ms 15188 KB Output is correct
6 Correct 89 ms 15188 KB Output is correct
7 Correct 89 ms 15184 KB Output is correct
8 Correct 90 ms 15152 KB Output is correct
9 Correct 88 ms 15184 KB Output is correct
10 Correct 90 ms 15184 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 2 ms 2392 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 90 ms 14928 KB Output is correct
2 Correct 86 ms 14932 KB Output is correct
3 Correct 86 ms 15064 KB Output is correct
4 Correct 88 ms 14932 KB Output is correct
5 Correct 86 ms 14912 KB Output is correct
6 Correct 87 ms 14812 KB Output is correct
7 Correct 84 ms 14884 KB Output is correct
8 Correct 84 ms 14936 KB Output is correct
9 Correct 83 ms 14676 KB Output is correct
10 Correct 84 ms 14932 KB Output is correct
11 Correct 74 ms 13144 KB Output is correct
12 Correct 77 ms 13312 KB Output is correct
13 Correct 76 ms 13144 KB Output is correct
14 Correct 77 ms 13144 KB Output is correct
15 Correct 85 ms 14908 KB Output is correct
16 Correct 76 ms 13144 KB Output is correct
17 Correct 78 ms 13148 KB Output is correct
18 Correct 86 ms 14928 KB Output is correct
19 Correct 85 ms 14672 KB Output is correct
20 Correct 78 ms 13140 KB Output is correct
21 Correct 87 ms 14996 KB Output is correct
22 Correct 92 ms 14928 KB Output is correct
23 Correct 90 ms 15184 KB Output is correct
24 Correct 87 ms 14928 KB Output is correct
25 Correct 94 ms 15188 KB Output is correct
26 Correct 89 ms 15188 KB Output is correct
27 Correct 89 ms 15184 KB Output is correct
28 Correct 90 ms 15152 KB Output is correct
29 Correct 88 ms 15184 KB Output is correct
30 Correct 90 ms 15184 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 0 ms 2396 KB Output is correct
33 Correct 0 ms 2396 KB Output is correct
34 Correct 0 ms 2396 KB Output is correct
35 Correct 0 ms 2396 KB Output is correct
36 Correct 0 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 0 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 0 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 0 ms 2396 KB Output is correct
48 Correct 0 ms 2396 KB Output is correct
49 Correct 1 ms 2392 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 2 ms 2392 KB Output is correct
52 Correct 1 ms 2396 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 1 ms 2396 KB Output is correct
56 Correct 1 ms 2396 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2396 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 1 ms 2396 KB Output is correct
61 Correct 110 ms 14932 KB Output is correct
62 Correct 110 ms 15172 KB Output is correct
63 Correct 98 ms 14860 KB Output is correct
64 Correct 111 ms 15184 KB Output is correct
65 Correct 120 ms 15184 KB Output is correct
66 Correct 115 ms 14932 KB Output is correct
67 Correct 113 ms 15100 KB Output is correct
68 Correct 90 ms 15188 KB Output is correct
69 Correct 91 ms 15024 KB Output is correct
70 Correct 87 ms 15020 KB Output is correct